package com.imooc.springboot.conusmer;

import org.springframework.amqp.rabbit.annotation.Exchange;
import org.springframework.amqp.rabbit.annotation.Queue;
import org.springframework.amqp.rabbit.annotation.QueueBinding;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.support.AmqpHeaders;
import org.springframework.messaging.Message;
import org.springframework.messaging.handler.annotation.Headers;
import org.springframework.messaging.handler.annotation.Payload;
import org.springframework.stereotype.Component;

import com.rabbitmq.client.Channel;

import java.util.Map;

@Component
public class RabbitReceiver {

	@RabbitListener(bindings = @QueueBinding(
			value = @Queue(value = "queue-1", durable="true"),
			exchange = @Exchange(value = "exchange-1", durable="true", type= "topic", ignoreDeclarationExceptions = "true"),
			key = "springboot.*"
			)
	)
	@RabbitHandler
	public void onMessage(Message message, Channel channel) throws Exception {
		System.err.println("--------------------------------------");
		System.err.println("消费端Payload: " + message.getPayload());
		Long deliveryTag = (Long)message.getHeaders().get(AmqpHeaders.DELIVERY_TAG);
		//手工ACK
		channel.basicAck(deliveryTag, false);
	}

    /**
     * spring.rabbitmq.listener.order.queue.name=queue-2
     * spring.rabbitmq.listener.order.queue.durable=true
     * spring.rabbitmq.listener.order.exchange.name=exchange-1
     * spring.rabbitmq.listener.order.exchange.durable=true
     * spring.rabbitmq.listener.order.exchange.type=topic
     * spring.rabbitmq.listener.order.exchange.ignoreDeclarationExceptions=true
     * spring.rabbitmq.listener.order.key=springboot.*
     *
     * @param order
     * @param channel
     * @param headers
     * @throws Exception
     */
    @RabbitListener(bindings = @QueueBinding(
            value = @Queue(value = "${spring.rabbitmq.listener.order.queue.name}", durable="${spring.rabbitmq.listener.order.queue.durable}"),
            exchange = @Exchange(value = "${spring.rabbitmq.listener.order.exchange.name}", durable="${spring.rabbitmq.listener.order.exchange.durable}", type= "${spring.rabbitmq.listener.order.exchange.type}", ignoreDeclarationExceptions = "${spring.rabbitmq.listener.order.exchange.ignoreDeclarationExceptions}"),
            key = "${spring.rabbitmq.listener.order.key}"
        )
    )
    @RabbitHandler
    public void onOrderMessage(@Payload com.imooc.springboot.entity.Order order,
                               Channel channel,
                               @Headers Map<String, Object> headers) throws Exception {
        System.err.println("--------------------------------------");
        System.err.println("消费端order: " + order.getId());
        Long deliveryTag = (Long)headers.get(AmqpHeaders.DELIVERY_TAG);
        //手工ACK
        channel.basicAck(deliveryTag, false);
    }

}
